Feed-mill



`Patented Oct. 25, 1898-. 4 J. S., WJGGK.`

FEED MILL. (Appximcion @15d Ju. 29, 1897.)

4 Sheets-Sheet 2.

(No Modell.)

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WITN ESSES TH: Ncmms PETERS cu, mom-uma. wxsmncron. D. c,

No. 6I2',940. Patented Oct. 25, |898. J. S. WOUDCUCK.

FEED MILL.

(Application led Jau. 29, 1897.) (No Model.) 4 Sheets-Sheet 3.

, y 'ATTORNEY m: 'Nonms Pneus wom-urne., wsnmmou. DA c.

No. s|2,94o. Patented oct. 25,1898.

J. s. wooncoc'K.

FEED MILL. (Applicaion med Jan. 29, 1897.) (No Model.) 4 Sheets-Sheet 4.

wlTNi-:ssEs: mvENToR jwfme l y n l i f BY QW/ r f afa, f ,f

' ATTORNEY MNITED STATES f ,PATENT OFFICE.

JAMES S. WOODOOCK, OF NEW LEXINGTON, OHlO.

FEED-MILL.

. i A SPECIFICATION forming part of Letters Patent No. 612,940, datedOctober 25, 1898. Application iiled January 29, 1897. Serial No.621,231. (No model.)

To @ZZ whom it mag/concern:

Beit known that I, JAMEs S. 'Wooncocm a citizen of the United States,residing at New Lexington, in the county of Perry and State of Ohio,have invented a certain new and useful Improvement in Feed-Mills, ofwhich the following is a specification'.

My invention relates to the improvement of feed-mills of that classwhich are adapted for the purpose of grinding feed for stock.

The present invention aims "at improvements in the details ofconstruction hereinafter more particularly described, and then pointedout in the claims. f A j These objects I accomplish in the -mannerillustrated in the accompanying drawings, in which- Figure 1 is a sideelevation of my improved machine. Fig. 2 is a central vertical sectionof the forward end portion of said machine. Fig. 3 is an end view withthe end cap and grinding-cones removed. Fig. 4 is a detail sectionalview of the forward or delivery end portion of the grinding-machine,taken at right angles with that shown in Fig. 2 and showing the innergrinding-cone removed. Fig. 5 is adetail view, in side elevation, oftheouter or stationary grinding-cone, showing the inner grinder connectedtherewith. Fig. 6 is a plan View of the inner grinding-rings.

, Fig. 7 is a detail view showing a transverse section of one of theupper breakers, and Fig. 8 is a plan view of the body of the machinewith the hopper removed' therefrom. Fig. 9 is an enlarged sectional viewthrough Fig. 4 transversely of the shaft. Fig. 10 is an enlargedperspective detail showing one of the lugs and conveyers of thegrindingring.

Similar numerals refer to similar parts throughout the several views.

As indicated in the drawings, the feed-mill to which my improvementsrelate is of that character wherein the corn or other substance to beground is first subjected to the action of horizontally-arrangedbreakers and afterward conveyed to and passed between conegrinders anddelivered at one end of the machine. i

1 represents the horizontally-arranged body of my improved feed-mill,which may be of the usual or general construction, and 2 represents thestationary hopper or breaker-casing, which rises from said body. Withinthis hopper are journaled in the usual manner two or morehorizontally-arranged breakers or breaker-shafts 3, these breakershaving their rearwardly-extending journals geared together in the usualmanner and operated by a gear-wheel 4, which is on the end of one ofsaid shafts and which receives its motion from a pinion 5, which ismounted on the main or driving shaft 6. This driving-shaft extendshorizontally through the lower portion of the body or casing 1 andthrough the central portion of the flaring end extension or outlet 7 ofsaid body.

As indicated more clearly in Figs. 7 and S of the drawings, each of thebreakers 3 is provided throughout its length at desirable intervals withperipheral depressions S, resulting in the formation oflongitudinally-arranged shoulders 9. From the raised or outer portionsof each of the breaker-shafts project at desirable intervals suitablebreakingteeth 10, the teeth of one breaker `being so located as to passbetween two of the teeth of the adjoining breaker when said breakers arerotated.

Upon that portion of the shaft 6 which is contained within the body ormain casing 1 is mounted a conveying-sleeve 11, the teeth of which areso inclined as to result when said shaft 6 is rotated in the materialcontained in the casing 1 being fed outward into the extension 7. Asindicated in the drawings, the inner portionof said extension 7 isflaring or of a truncated-cone form,and within this coneshaped portionis adapted to fit a correspondingly-shaped grinding-ring 13. This ring,as indicated more clearly in Figs. 2 and 4of the drawings, is providedon its inner surface with the usual grinding teeth or ribs 14. Asindicated, I provide the exterior surface of the cone grinding-ring 13with oppositely-located lugs 15, through which `are adapted to pass, asshown in Fig. 4 of the drawings, bolts 16, the heads of said boltsengaging with said lugs and the outer end portions of said boltsextending through openings formed in lateral extensions 17 of thebody 1. These bolts are adapted to be held in position by means of nuts18, which are on the outwardly-projecting ends thereof. In order tofurther secure IOO the grinding-ring 13 in its position and prevent anytendency toward rotation, I provide the extension 7 at opposite pointswith recesses 19, which are adapted to receive the lugs 15. 2O representlugs which project at equidistant points from the outer edge or rim ofsaid grinding-ring 13.

21 represents an inner-cone grinding-ring which is adapted to besupported and rotate within the external grinding-ring 13. This innergrinding-ring is, as shown more clearly in Fig. of the drawings,provided about its outer end portion with a shallow ange or raised bandor skirt 23. The remaining exterior surface of said inner cone isprovided with grinding-teeth, as indicated at 24. The outer edge portionof the inner grinding-ring is provided at intervals with forwardly andthence outwardly projecting wings or conveyers 25, which when said ringis rotated are adapted to move within the expanded mouth portion 26 ofthe extension 7.

As shown in Fig. 5 of the drawings, the flanged surface or skirt 23 ofthe inner grinding-ring is adapted when said ring is in its place withinthe outer ring to bear against the inner faces of the lugs 20, therebypreventing an actual contact of the external grindingteeth of the innercone and the corresponding internal teeth of the outer cone.

As shown in Figs. 2 and. 6, I provide the inner and conical surface ofthe inner grinding-ring with radially-arranged lugs 28, the latter beingin pairs, as shown.

In order to insure the inner grinding-cone in its position within theouter grinding-ring, I mount upon the shaft 6 a sleeve or stop-colcar29, which is provided with radially-arranged arms 30, said arms beingadapted to fit, respectively, between the lugs of the pairs 28. Theinner end of this sleeve or collar 29 passes through the inner end. ofthe internal grinding-ring and bears against the outer end of theconveyer-sleeve 11. The stop-collar 29 is prevented from rotation on theshaft 6 by means of a key 31, which is adapted to pass through saidcollar and also through said shaft.

Bolted or otherwise detachably connected with the outer end of theextension 7 is an end plate or cap 32, which has projecting centrallytherefrom a boxing 33, which receives and forms a bearing for the outerend of the shaftv 6.

34 represents a set-screw which passes through and whichhas a threadedengagement with the outer end of the boxing 33. This set-screw has fixedto its outer end portion a suitable hand-wheel 35, the latter beingprovided with peripheral notches 36.

37 represents a pawl-lever which is fulboxing 33 and which is adapted tobe dropped downward into engagement with the desired notch 36.

cated in the drawings, is adapted to bear against the outer end of theshaft 6.

The mouth portion 26 of the extension 7 is provided in its lower sidewith an outlet-spout 40, while a similar outlet is provided in its side,as indicated at- 4l.

Upon the stationary hopper-casing 2 I secure a detachable and iiaringhopper 42.

The operation of my improved feed-mill is substantially as follows:Rotary motion being communicated to the shaft 6 and the breakers 3 andconsequently to the conveyer-sleeve ll and inner grinding-ring 21 thecorn or other material to be ground is introduced into the hopper 42,where it is subjected to the action of the breakers 3. Passing thesebreakers the partially -.broken material is dropped downward into themain case 1, from whence it is driven outward by the conveyer 11 betweenthe grinding-rings 13 and 21. Subjected to the grinding and crushingaction of the teeth of the grinding-rings, the comparativelyfinely-ground material is discharged into the mouth portion 26 and isthence conveyed outward by the action of the Wings 25 through the outlet40 or 41.

Although the space between the teeth of the two grinding-rings graduallydecreases in width toward the outer portions of said rings it is obviousthat the bearing of the skirt or iiange portion 23 of the inner ringagainst the lugs 2O of the outer ring must serve to prevent actualfrictional contact between said teeth, thereby insuring the life anddurability of said parts by preventing undue wear thereof.

The rigid connection of the collar 29 with the shaft 6 and theengagement with the arms 30 of said collar with the lugs 28 of theinner' grindin-g-ringprovide effective means for connecting the innergrinding-ring with the shaft and insuring the rotation of said ring.

Owing to the engagement of the lugs 15 of the stationary or outergrinding-ring with the recesses 19 and the fact that said lugs have j abolt connection with the body of the machine, it is obvious that saidring will be firmly retained in connection with the said machine-bodyand prevent it from any tendency toward rotation or working outwardthrough the action of the moving parts.

By the formation of the longitudinal grooves in the breakers 3 it willbe seen that recesses are formed in the said breakers, which prevent thecontact of the teeth of one breaker with the body of the adjoining ybreaker. formation of the longitudinal shoulders 9, which serve toengage the corn or other material and form breaking-surfaces in additionQ to the teeth 10. crumed at one end to the upper side of the 5 Thesegrooves also result in the It will be observed that the construction ofi my improved feed-mill and its parts is simj ple and that the same maybe produced in a durable and reliable form at a reasonable cost Theinner end of the set-screw 34, as indiof manufacture.

IOO

IIO

Having now fully described rnyinvention, what I claim, and desire tosecure by Letters Patent, is

l. In a feed-mill the combination with the body thereof, a rotatingshaft and a conical grinding-ring 21 carried thereby, said grinding-ringhaving a raised iiange or skirt portion 23, having the same incline asthe Wall of the grinding-ring, of a fixed grinding-ring surrounding saidring 2l and lugs projecting from said xed ring against which the flangeor skirt portion 23 of said ring 21 is adapted to bear and preventcontact of the teeth of said rings and means for feeding materialbetween said rings and conveyers on the outer edge portion of the innerring projecting forwardly and outwardly, substantially as and for thepurpose specified.

2. The combination With-the casing-body l having the extension 7, thelatter being provided With an outlet, of a rotating drivingshaft 6extending through said casing and extension, a stationary grinding-ringWithin said extension and a grinding-ring mounted on said shaft 6 Withinsaid stationary ring,

lugs 2O on the stationary ring with their inner faces inclined toconform to the incline of the outer Wall of the skirt portion and araised skirt portion 23 formed on the inner ring and having its outerface on substantially the same incline Vas the Wall of the ring andadapted to bear against the inner inclined Walls of said lugs andprevent contact of the grindingteeth on said rings, substantially as andfor the purpose specified.

3. The combination with the outer conical grinding-ring having lugs 2Oat its larger end extending in the directionlof the incline of its outerWall, of the inner conical grindingring having at its larger end asurrounding skirt extended beyond its grinding portion and having thesame inclination as the Wall of the grinding-ring, and lugs projectingbeyond said skirt and having lateral portions forming conveyers, allsubstantially as shown 45 and described.

JAMES S. WOODCOCK. In presence of- B. D. YAW, H. F. ACKER.

